Diff Report
Run #519a6b3fa9c9c: XHProf Run (Namespace=drupal-perf-cottser)
vs.
Run #519a6f8ea14bd: XHProf Run (Namespace=drupal-perf-cottser)
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Regression/Improvement summary for Drupal\Core\Database\Driver\mysql\Connection::open

Drupal\Core\Database\Driver\mysql\Connection::openRun #519a6b3fa9c9cRun #519a6f8ea14bdDiffDiff%
Number of Function Calls1 1 0 0.0%
Incl. Wall Time (microsec)539 558 19 3.5%
Incl. Wall Time (microsec) per call 539 558 19 3.5%
Excl. Wall Time (microsec)43 42 -1 -2.3%
Incl. CPU (microsecs)258 279 21 8.1%
Incl. CPU (microsecs) per call 258 279 21 8.1%
Excl. CPU (microsec)38 36 -2 -5.3%
Incl. MemUse (bytes)12,848 12,848 0 0.0%
Incl. MemUse (bytes) per call 12,848 12,848 0 0.0%
Excl. MemUse (bytes)3,160 3,160 0 0.0%
Incl. PeakMemUse (bytes)12,568 12,568 0 0.0%
Incl. PeakMemUse (bytes) per call 12,568 12,568 0 0.0%
Excl. PeakMemUse (bytes)1,752 1,752 0 0.0%

Parent/Child Regression/Improvement report for Drupal\Core\Database\Driver\mysql\Connection::open [View Callgraph Diff]


Function NameCalls DiffCalls
Diff%		Incl. Wall
Diff
(microsec)		IWall
Diff%		Incl. CPU Diff
(microsec)		ICpu
Diff%		Incl.
MemUse
Diff
(bytes)		IMemUse
Diff%		Incl.
PeakMemUse
Diff
(bytes)		IPeakMemUse
Diff%
Current Function
Drupal\Core\Database\Driver\mysql\Connection::open0 N/A% 19 1.6% 21 1.8% 0 0.0% 0 0.0%
Exclusive Metrics Diff for Current Function-1 -5.3% -2 -9.5% 0 N/A% 0 N/A%
Parent function
Drupal\Core\Database\Database::openConnection0 N/A% 19 100.0% 21 100.0% 0 N/A% 0 N/A%
Child functions
PDO::__construct0 N/A% 13 68.4% 21 100.0% 0 N/A% 0 N/A%
PDO::exec0 N/A% 6 31.6% 1 4.8% 0 N/A% 0 N/A%
implode0 N/A% 1 5.3% 1 4.8% 0 N/A% 0 N/A%